Delivery Services are those that require white-glove service / handling of products in and out of a premises and that generally exceed multiple pieces, are over sized or that are over 60-100 Lbs. Courier Services are those that are items such as letters, boxes generally under 60-100 lbs, or  items that do not require white glove service or special handling (i.e. extra swamper - labourer) except by an assisted device i.e. forklift.